Convert JPG images into PNG, a lossless format that will not degrade further each time it is edited and saved. This is the right move before doing graphics work on an image.
Be aware that converting will not restore detail already lost to JPG compression — existing artefacts are preserved exactly. PNG simply stops any further loss from here on.
Expect the PNG to be considerably larger than the JPG it came from, since nothing is being discarded.
How to use it
Add your JPG photos.
Press Convert — each becomes a lossless PNG.
Download them individually or as a ZIP.
Supported formats and limits
Input
JPG photos
Output
PNG, lossless
File size
Usually larger — PNG stores every pixel exactly
Quality
No further loss, though JPG artefacts already present remain
Where it runs
In your browser; nothing uploaded
Not for: Recovering quality — converting to PNG stops further loss but cannot undo compression already baked into the JPG.
Frequently asked questions
Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Does converting to PNG improve image quality?
No. It preserves exactly what is there, including compression artefacts already baked into the JPG. It prevents further loss rather than recovering detail.
Why is the PNG so much bigger?
PNG is lossless, so it stores every pixel precisely instead of approximating them the way JPG does.